List of Illustrations xxi 



PAGE 



Etheostoma camurum, Blue-breasted Darter 231 



Liiiramis semicintus and Chlci>asks colubrinus, Snake-eels 233 



Coral Reef at Apia 234 



Rudarius ercodes, Japanese Filefish 241 



Tetraodon setosus, Globefish 244 



Dasyates sabina, Sting-ray 246 



Diplesion blennioides, Green-sided Darter 247 



Hippocampus mohnikei, Japanese Sea-horse 250 



Archoplites interruptus, Sacramento Perch 258 



Map of the Continents, Eocene Time 270 



Catdophryne jordani, Deep-sea Fish of Gulf Stream 276 



Exerpes asper, Fish of Rock-pools, Mexico 276 



Xenocys jessice 279 



Iclaliirus piinctatus, Channel Catfish 280 



Drawing the Net on the Beach of Hilo, Hawaii 281 



Semotilns atromacidatits, Horned Dace 285 



Leiiciscus lineatus, Chub of the Great Easin 287 



Melletes papilio, Butterfly Sculpin 288 



Scartichihys enosima, a Fish of the Rock-pools of the Sacred Island of Eno- 



shima, Japan 294 



Halichares bivittatus, the Slippery Dick 297 



Peristedion miniatiim 299 



Outlet of Lake Bonneville 303 



Hypocrilichthys analis, Silver Surf-fish 309 



Erimyzon sucetta, Creekfish or Chub-sucker 315 



Thaleichthys pretiosus, Eulachon or Ulchen 320 



Plecoglossus altivelis, the Japanese Ayu 321 



Coregonus clupeijormis, the Whitetish 321 



Mullus auratus, the Golden Surmullet 322 



Scomberomorus macidalus, the Spanish "Mackerel 322 



Lampris luna, the Opah or Moonfish 323 



Pomatomus sallairix, the Bluefish 324 



Centropomus undecimalis , the Robalo 3^4 



CImtodipterus jaber, the Spadefish 325 



Mkropkrus dotomieu, the Small-mouthed Black Bass 325 



Salvelinus fontinalis, the Speckled Trout 326 



Salmo ^airdnen, the Stee'head Trout 326 



Salvelinus oquassa, the Rangeley Trout 3^6 



Salmo rivularis, the Steelhead Trout 3^7 



Salmo henshawi, the Tahoe Trout 3^7 



Salvelinus malma, the Dolly Varden Trout 3^7 



Thymallus signifer, the Alaska Grayling 32S 



Esox liicius, the Pike 3-8 



Pleurogrammus monopterygius, the Atka-fish 328 



Chirosioma humboldlianum, the Pescado bianco 329 



